Samsung GT B5310 - SOFTWARE

I HAVE SAMSUNG GT B5310 MOBILE SET IN WHICH WHENEVER I TRY TO DOWNLOAD ANY GAMES THE SOFTWARE NOT SUPPORTING TO IT. TELL ME WHY THE HELL I SHOULD PURCHASE COSTLY SET WHICH IS NT SUPPORTING ANY DOWNLOADS. wHEN I ENQUIRED WITH SERVICE CENTRE THEY ARE NT RESPONDING TO IT. CAN U PLEASE HELP OUT IN THIS. I AM NT AT ALL SATISFIED WITH SERVICE BY SAMSUNG. NOBODY SHOULD PURCHASE SAMSUNG MOBILES.